Question
Download Solution PDFWhich gas is mainly responsible for ozone layer depletion ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is CFCs.
Key Points
- Chlorofluorocarbons (CFCs) are mainly responsible for ozone layer depletion.
- Refrigerators, air-conditioners, Fire extinguishers, Adhesives, aerosols are the major sources of ozone-depleting substances.
- About Ozone layer:
- CFC has disrupted this balance and increase the degradation of Ozone gas which is called Ozone depletion.
- Although ozone depletion is occurring in the stratosphere, the depletion is especially marked over the Antarctic region.
- This has resulted in the formation of a large area of the thinned ozone layer, commonly called the ozone hole
- Montreal Protocol in 1987 bans the production of CFCs, halons, and other ozone-depleting chemicals.
- World Ozone Day is observed on the 16th of September every year.
- The O3 layer present in the stratosphere protects us from the harmful UV rays of the sun.
- Ozone layer thickness is measured in Dobson units.
Last updated on Jun 16, 2025
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